| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 7 | |
| #2 | United Kingdom | 3 | |
| #3 | France | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Mechanical elements | |
| #3 | Machines | |
| #4 | Thermal processes |
| # | Technology | |
|---|---|---|
| #1 | Pumps | |
| #2 | Venting or aerating devices | |
| #3 | Steam condensers | |
| #4 | Unspecified technologies | |
| #5 | Non-positive-displacement pumps | |
| #6 | Controlling combustion engines | |
| #7 | Machines | |
| #8 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Grace John F | 2 |
| #2 | Paul Diserens | 1 |
| #3 | Fleming Wills M | 1 |
| #4 | Bourne Phillips P | 1 |
| #5 | Holveck Joseph E | 1 |
| #6 | Brigham Nelson E | 1 |
| #7 | Max Spillmann | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2227260A | Automatic control for high pressure pumps | |
| US1578498A | Pump | |
| US1642724A | Valve | |
| US1622699A | Oil-engine-driven centrifugal and similar pump | |
| US1607318A | Balancing device for centrifugal pumps and the like | |
| US1535662A | Surface condenser | |
| US1616656A | Surface condenser | |
| GB145744A | Improvements in automatic plate valves | |
| GB141768A | Improvements in valves |